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The ratio is 19/9.

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Q: What is the similarity ratio of a prism with surface area 361 ft2 to a similar prism with surface area 81 ft2?
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Related questions

What is the similarity ratio of a prism with surface area 36 ft2 to a similar prism with surface area 225 ft2?

The ratio is sqrt(36) : sqrt(225) which is 6 : 15 or 2 : 5


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